According to molecular orbital theory, the number of unpaired electron(s) in $\mathrm{O}_{2}^{2-}$ is :
$1$
$0$
$2$
$3$
The pair of species that has the same bond order in the following is
Which of the following molecular orbital has two nodal planes
The molecular electronic configuration of $H_2^ - $ ion is
Which are the type of molecular orbitals ? Give information in short.
According to molecular orbital theory, which of the following is true with respect to $Li_2^ + $ and $Li_2^ - $ ?